Display card holder



FIG. 1 is a perspective view of a display card holder showing my new design;

FIG. 2 is a front view, the rear view being a mirror image thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom view. 

The ornamental design for a display card holder, as shown and described. 